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2100423423 = 37175999721
BaseRepresentation
bin111110100110001…
…1110101011111111
312102101022120021010
41331030132223333
513300202022143
6544231210303
7103023206310
oct17514365377
95371276233
102100423423
119886a822a
124a7516993
132762087c7
1415cd5a607
15c45eca33
hex7d31eaff

2100423423 has 32 divisors (see below), whose sum is σ = 3446392320. Its totient is φ = 1110481920.

The previous prime is 2100423421. The next prime is 2100423433. The reversal of 2100423423 is 3243240012.

It is not a de Polignac number, because 2100423423 - 21 = 2100423421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2100423423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100423421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28798 + ... + 70923.

It is an arithmetic number, because the mean of its divisors is an integer number (107699760).

Almost surely, 22100423423 is an apocalyptic number.

2100423423 is a deficient number, since it is larger than the sum of its proper divisors (1345968897).

2100423423 is a wasteful number, since it uses less digits than its factorization.

2100423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99807.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2100423423 is about 45830.3766403899. The cubic root of 2100423423 is about 1280.6652269292.

Adding to 2100423423 its reverse (3243240012), we get a palindrome (5343663435).

The spelling of 2100423423 in words is "two billion, one hundred million, four hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 17 21 51 59 119 177 357 413 1003 1239 3009 7021 21063 99721 299163 698047 1695257 2094141 5085771 5883539 11866799 17650617 35600397 41184773 100020163 123554319 300060489 700141141 2100423423